Antiskid device



Sept. 11, 1923. 1,457,579

' H. cl. GRAYBILL ANTISKID DEVICE Filed Oct. l. 1920 Syvum/vrom Patented Sept. 11,1923.

f narran STATES.-

Maisie PATEN 'r orrice;

HENRY c. GRAYBILL, on ALTooNA, PENNSYLVANIA.

ANTISKID nnvrcn. v

Application 1aed october 1, 1920.' sen-a1 No. 413,954.

To all whom t may concern.'`

Be it known that 1'. HENRY C. GRAYBILL, citizen of the United States, residing at Altoona, in the county of Blair and State of- Pennsylvania, have invented new and useful Improvements in ntiskid Devices, of which the following is a specification. l

This invention relates to anti-skid devices for truck wheels.

A primary object is to provide an improved antiskid chain and fastening which dispenses with the usual side chain and enables truck operators to quickly assemble' chain when once it is assembled on the truckV wheel.

With the above and other objects in view which will be more readily apparent ,as the nature of the invention is better understood the same consists in the novel construction, combination and arrangement of parts hereinafter more fully pointed out, illustrated and claimed.

lt will be readily apparent to those skilled in the art to which this invention relates that the same is susceptible of structural changes or modification without departing from the spirit or scope of the invention, but a preferred and thoroughly practical embodiment of the invention is shown in the accompany-` ing drawings, in which Figure l is a side elevation of a truck wheel having my improved chains and chain `fasteners applied thereto. l

Figure Q is a cross section of the truck wheel shown in Figure 1 and illust-rates the manner in which the chain is applied over the tiretread.

Figure 3 is a composite view showing a plan. side elevation and end elevation of the chain fastening means adapted to be applied to the outside of the truck wheel.

Figure 4 is a view similar to Figure 3 showing a side elevation and an end elevation of the chain fastening means adapted to be applied to the inside of the wheel. v

Like reference numerals refer to corresponding parts throughout the several figures of the drawings. y f i The present invention aims particularly to provide an anti-skid unit which may be used in any desired multiple, and easily and quickly applied to any vehicle wheel now in use. l In this connection the invention is of particular' advantagev in Vconnection with truck wheels of the solid tire type, although 1t may be conveniently used in connection.- v

with other types. By reason of the particu-"" lar construction of the anti-skid unit it may be applied with convenience to a truck wheel whichl is y stalled 'in mud or the like where it would be otherwise impossible to apply an anti-skid chain over the entire circumference of the wheel.` y i Referring particularly to the novel features of construction it will be observed from the drawing that the felly F of the wheel W is preferably provided with a plurality of transverse openings 1 to receive the fastening or tie-bolt 2 for coupling or connecting the chain locking or attaching plates 3 and 4 respectively.

Thesaid plates 3 and 4 are preferably of arc shape formation and are of a length corresponding to substantially the arc between two adjacentspokes as shown in the drawings thereby conforming to the shape of the felly and rim, and are held securely in posi- A tion on opposite sides ofthe felly by means of the fastening' bolt 2.r One of the plates, namely, 3, is provided at each end with the hook elements 3 having at their outer ends openings 3b for receiving a Cotter pin orv equivalentretaiuing key. The other plate,4, is formed withsomewhat similar retaining hooks 4a but as will be observed from the drawings thesaid hooks 4a are relatively long as compared with the hooks 8" to facilitate the holdingv of the cross chain 5 in position. Tha-t is to say one of the attaching plates is provided with holding hooks of greater length than the other so that the eye or ring 5for instance kof the chain 5 may be first. placed over the hook 4, then across the tread of the tire on thewheel so thatthe other terminal ring or eye 5b of the chain may be fitted over the relatively may exist in the chain 5 either at the time of application or as a result of tire wear during service and effectively holds the cross chains 105. short hook 3. This arrangement provides 1 means for compensating for any slack that in place. However, as a further safeguard in connection with the short 'hooks r ,the suitable transverse key elementsjmay be passed through the opening 3b chain hook 4" serves to throw the broken chain out of the Way to prevent-lit 'from striking the fender as broken chains usually do.r

From thefforegoing it will be apparent that the present devi-ce includes pair of holding' or attaching plates which' are secured in position by a common tie bolt, and have at their opposite end portions suitable intu'rned hooks for receiving the cross chains 5 ,Which are preferably paired in each unit. As will be apparent from Figure l any desired number of units may-be placed ,about the telly oit the Wheel, but in usual practice has been vfound that seven units have proved practical and sutlieient to, produce the most effective resultsl :Withoutifurther description it islthought that the many features and advantages of the invention Will be readily appa-rent, and

it Will of course be understood that changes in the form, proportion and minor details of to provide the additional locking"eicect.,l `rlhe 'inside construction may be resorted to Without departing; Yfrom the spirit of the inif'ention or scope ot the appended claim.

l claim vAnanti-skidffuniti forl Vehicle Wheels, including in combination with the Wheel telly ihnen and outer chain attaching plates of a length n corresponding to substantially the are betweentivo*adjacent spokes and positioned at opposite sides of the telly, one ot said plates having long hoolrs at opposite ends thereof, and the other plate having short hooks providingchain seats and having Lopenings to receive Cotter-keys `for holding theA chains in the seats', a bolt passing through' the telly` and clamping the plates thereto, and tread chains having the end rings thereof ,engaging with the long` hooks and the short hoclis of the oppositeattaching plates.

In testimony whereof l hereunto aiiix my signature in the presence of tWo Witnesses. A y HENRY c.I enfiYBiLn `Witnesses N. E. Gini, f, EMORY L. Gnorr. 

